Observations on the biology of Mugil cephalus ashentensis and the possibility of its aquaculture on the Mauritanian coast

Brulhet, Jacques

doi:10.1016/0044-8486(75)90004-6

Cited by 17 publications

(12 citation statements)

References 1 publication

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“…Polychaetes were also prominent, especially in the diet of M. cephalus. The diet of the mullets examined in this study does not differ appreciably from that of species studied elsewhere in West Africa (Fagade & Olaniyan, 1973;King, 1988;Bruhlet, 1975;Payne, 1976;Albaret & Legendre, 1985) where mullets have been reported to feed mainly on diatoms, organic detritus and sand grains. Although the nutritional value of detritus may be negligible, it is considered a good source of vitamin B 12 for mullets (Vallet et al, 1970quoted in Eggold & Motta, 1992 and is also richly associated with bacteria and protozoa which may be of some nutritional value to the fish (Bruslé, 1981).…”

Section: Intestine Length To Standard Length Ratio (Relative Gut Length)mentioning

confidence: 79%

Food and feeding habits of grey Mullets (Pisces: Mugilidae) in two estuaries in Ghana

Dankwa¹,

Blay²,

Yankson³

2009

West African Journal of Applied Ecology

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Food and feeding habits of grey mullets (Mugilidae) in the River Volta and River Pra estuaries in Ghana were studied between February 1997 and July 1998 as part of efforts to encourage their culture. Stomach contents of fish samples, obtained with a cast net and a drag net, were analysed using the 'points' and frequency of occurrence method. Diatoms, detrital material and sand particles were the major items in the stomachs of all the species from the two estuaries. Their diet did not show any substantial seasonality, neither did it change with size. The various species ingested sand particles of selected range with Liza dumerilii ingesting the widest range in both estuaries, 41.2-1195.8 µm in the Volta estuary, and 33.0-1649.0 µm in the Pra estuary. Species that ingested the same modal size of sand particles showed preferences for different food items. The shortest mean relative gut length (gut length to body length ratio) of 1.82 and 1.72 were calculated for L. dumerilii in the Volta and Pra estuaries, respectively, while the longest mean relative gut length of 4.56 was calculated for Mugil cephalus in the Volta estuary and 4.33 for Liza grandisquamis in the Pra estuary. All the species showed a diurnal feeding habit, with the main feeding period occurring between 08.00 and 12.00 h. The peak feeding time, however, differed among the species.

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Section: Intestine Length To Standard Length Ratio (Relative Gut Length)mentioning

confidence: 79%

Food and feeding habits of grey Mullets (Pisces: Mugilidae) in two estuaries in Ghana

Dankwa¹,

Blay²,

Yankson³

2009

West African Journal of Applied Ecology

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“…Earlier workers have found that females of Mugif sufiens (El-Zarka & El-Sedfy, 1970), M. cupito (El-Maghraby et al, 1974) and M. cephulus (Brulhet, 1975;Cech & Wohlschlag, 1975;Quignard & Farrugio, 1981), grew faster or slightly faster than males.…”

Section: Discussionmentioning

confidence: 94%

Age, growth and reproduction of the greenback mullet, Liza subviridis (Valenciennes), in an estuary in Southern Iraq

Al‐Daham

Wahab

1991

Journal of Fish Biology

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Age, growth, length‐weight relationship, sex ratio, stages of maturity and fecundity of the greenback mullet in Shatt Al‐Basrah Canal, an estuary in Southern Iraq, were studied from February 1985 to January 1986. Age and growth determinations were made from scales from 538 fish ranging from 145 to 310 mm total length. Females (age groups I to VI) were slightly longer than males (age groups I to IV) and their growth, analysed by length‐weight relationship, followed very closely the cubic‐law for isometric growth, but males grew more slowly. The annual average male: female sex ratio was 1.0: 1.4. Monthly examinations of stages of maturity produced abundant gravid fish in February. The maximum values for the gonadosomatic index were obtained in February and March. The smallest mature male and female were respectively 137 and 142mm long. The fecundity ranged between 133 224–295 065 for fish ranging from 182 to 243 mm total length. Although eggs or newly hatched larvae were not found in the Canal, fry 27–40 mm in length were captured from April to June. Spawning appears to occur in the Arabian Gulf, not far from Shatt Al‐Basrah Canal.

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“…A few reports are available on the biology of mullet species in the coastal waters of West Africa (Fagade & Olaniyan, 1973;Brulhet, 1975;Payne, 1976). Although these works dwelt principally on the food and feeding habits, similar investigations in other localities of the subregion are considered necessary for a fuller understanding of the feeding biology of the various mullet species.…”

Section: Introductionmentioning

confidence: 97%

“…Sixteen species have so far been identified in West Africa (Fowler, 1936;Cadenat, 1954), and these constitute an important proportion of the catches of commercial and subsistence fishermen in some countries in this area (Brulhet, 1975;Payne, 1976).…”

Section: Introductionmentioning

confidence: 99%

Food and feeding habits of four species of juvenile mullet (Mugilidae) in a tidal lagoon in Ghana

Blay¹

1995

Journal of Fish Biology

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Juvenile mugiiid fishes, Liza falcipinnis, L. dumerilii, Mugil hanunensis and M. curemu, which enter the Elmina Lagoon in the Cape Coast District of Ghana, have a similar diet comprising mainly bacteria, diatoms, blue-greenlgreen algae, protozoans, detritus and particulate organic matter. No seasonal changes in the diet and feeding activity were observed. The relative gut length (intestine to standard length ratio) and diet showed no significant changes with size of fish in all the species. All four species were diurnal feeders, but their peak feeding times differed. Interspecific competition for food was possibly limited by species preferences for substrate particles of particular size range and differences in feeding chronology.

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Observations on the biology of Mugil cephalus ashentensis and the possibility of its aquaculture on the Mauritanian coast

Cited by 17 publications

References 1 publication

Food and feeding habits of grey Mullets (Pisces: Mugilidae) in two estuaries in Ghana

Food and feeding habits of grey Mullets (Pisces: Mugilidae) in two estuaries in Ghana

Age, growth and reproduction of the greenback mullet, Liza subviridis (Valenciennes), in an estuary in Southern Iraq

Food and feeding habits of four species of juvenile mullet (Mugilidae) in a tidal lagoon in Ghana

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